/* ============================================
   Components — Header, Accordions, Content
   ============================================ */

/* ---- Header ---- */
.site-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xs) var(--space-sm);
  border-bottom: 1px solid var(--border);
  min-height: 56px;
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

.header-left {
  left: var(--space-sm);
}

.header-right {
  right: var(--space-sm);
}

.site-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  text-align: center;
  white-space: nowrap;
}

.header-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--min-touch-target);
  height: var(--min-touch-target);
  background: none;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  color: var(--text);
  transition: background var(--transition-fast);
  position: relative;
}

.header-btn:hover {
  background: var(--bg-surface);
}

.header-btn svg {
  width: 22px;
  height: 22px;
}

/* ---- Accordion Sections ---- */
.accordion-section {
  margin-bottom: var(--space-xs);
}

.accordion-heading {
  margin: 0;
}

.accordion-header {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 72px;
  padding: var(--space-sm) var(--space-md);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-lg);
  font-weight: 600;
  text-align: left;
  color: var(--text);
  position: relative;
  overflow: hidden;
  transition: border-radius var(--transition-normal), box-shadow var(--transition-normal);
  gap: var(--space-sm);
}

/* Glass gloss highlight */
.accordion-header::before {
  content: "";
  position: absolute;
  inset: 0 0 50% 0;
  background: linear-gradient(180deg, var(--glass-gloss), var(--glass-gloss-end));
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  pointer-events: none;
  z-index: 1;
}

.accordion-header:hover {
  box-shadow: var(--shadow-md);
}

/* Section colors */
[data-color="red"] .accordion-header {
  background: linear-gradient(160deg, var(--section-red-glass), var(--section-red-glass-end));
}
[data-color="orange"] .accordion-header {
  background: linear-gradient(160deg, var(--section-orange-glass), var(--section-orange-glass-end));
}
[data-color="yellow"] .accordion-header {
  background: linear-gradient(160deg, var(--section-yellow-glass), var(--section-yellow-glass-end));
}
[data-color="green"] .accordion-header {
  background: linear-gradient(160deg, var(--section-green-glass), var(--section-green-glass-end));
}
[data-color="blue"] .accordion-header {
  background: linear-gradient(160deg, var(--section-blue-glass), var(--section-blue-glass-end));
}
[data-color="indigo"] .accordion-header {
  background: linear-gradient(160deg, var(--section-indigo-glass), var(--section-indigo-glass-end));
}
[data-color="pink"] .accordion-header {
  background: linear-gradient(160deg, var(--section-pink-glass), var(--section-pink-glass-end));
}
[data-color="gray"] .accordion-header {
  background: linear-gradient(160deg, var(--section-gray-glass), var(--section-gray-glass-end));
}
[data-color="teal"] .accordion-header {
  background: linear-gradient(160deg, var(--section-teal-glass), var(--section-teal-glass-end));
}
[data-color="lime"] .accordion-header {
  background: linear-gradient(160deg, var(--section-lime-glass), var(--section-lime-glass-end));
}

/* Expanded state */
.accordion-header[aria-expanded="true"] {
  position: sticky;
  top: 0;
  z-index: 50;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
}

.section-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

.accordion-title {
  flex: 1;
  position: relative;
  z-index: 2;
}

.accordion-arrow {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-right: 2.5px solid var(--text);
  border-bottom: 2.5px solid var(--text);
  transform: rotate(45deg);
  transition: transform var(--transition-normal);
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

.accordion-header[aria-expanded="true"] .accordion-arrow {
  transform: rotate(-135deg);
}

.accordion-content {
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.accordion-content[hidden] {
  display: none;
}

.accordion-body {
  padding: var(--space-sm) var(--space-sm) var(--space-md);
}

/* ---- Flowchart Image ---- */
.flowchart-container {
  display: block;
  width: 100%;
  margin-bottom: var(--space-sm);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-surface);
}

.flowchart-image {
  display: block;
  width: 100%;
  height: auto;
}

[data-theme="dark"] .flowchart-image {
  filter: invert(1) hue-rotate(180deg);
}

/* ---- Subsection Cards (always visible) ---- */
.subsection-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-sm);
  margin-bottom: var(--space-sm);
}

.subsection-card:last-child {
  margin-bottom: 0;
}

.subsection-card > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm);
  cursor: pointer;
  list-style: none;
  min-height: var(--min-touch-target);
}

.subsection-card > summary::-webkit-details-marker {
  display: none;
}

.subsection-card > summary h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin: 0;
}

.subsection-card > summary .details-chevron-icon {
  transform: rotate(0deg);
  transition: transform var(--transition-fast);
}

.subsection-card[open] > summary .details-chevron-icon {
  transform: rotate(180deg);
}

.subsection-card .subsection-content {
  padding: 0 var(--space-sm) var(--space-sm);
}

.subsection-card h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

/* ---- Details chevron ---- */
.details-chevron {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
}

.details-chevron-icon {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-normal);
  transform: rotate(180deg);
  color: var(--text-muted);
}

details[open] > summary .details-chevron-icon {
  transform: rotate(0deg);
}

/* ---- Content Cards ---- */
.content-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-sm);
  padding: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.content-card:last-child {
  margin-bottom: 0;
}

.content-card h4 {
  margin-bottom: var(--space-xs);
}

.content-card.collapsible-card {
  padding: 0;
  margin-top: var(--space-sm);
}

.collapsible-card > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--min-touch-target);
  padding: var(--space-sm);
  cursor: pointer;
  list-style: none;
  font-weight: 600;
}

.collapsible-card > summary::-webkit-details-marker {
  display: none;
}

.collapsible-card > summary .details-chevron-icon {
  transform: rotate(0deg);
  transition: transform var(--transition-fast);
}

.collapsible-card[open] > summary .details-chevron-icon {
  transform: rotate(180deg);
}

.collapsible-card > .card-content {
  padding: 0 var(--space-sm) var(--space-sm);
}

/* ---- FAQ ---- */
.faq-list {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--min-touch-target);
  padding: var(--space-sm);
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  gap: var(--space-xs);
}

.faq-item > summary::-webkit-details-marker {
  display: none;
}

.details-summary-label {
  flex: 1;
}

.faq-item > p,
.faq-item > div {
  padding: 0 var(--space-sm) var(--space-sm);
  color: var(--text-secondary);
}

/* ---- Flow Steps ---- */
.flow-steps {
  list-style: none;
  padding: 0;
  margin: 0;
}

.flow-step {
  border: none;
}

.flow-step > summary {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: var(--min-touch-target);
  padding: var(--space-xs) 0;
  cursor: pointer;
  list-style: none;
}

.flow-step > summary::-webkit-details-marker {
  display: none;
}

.flow-step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: var(--brand-primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.flow-step > summary h3 {
  font-size: var(--font-size-base);
  font-weight: 600;
  flex: 1;
}

.flow-step-content {
  padding: var(--space-xs) 0 var(--space-sm) calc(32px + var(--space-sm));
}

.flow-arrow {
  display: flex;
  justify-content: center;
  padding: var(--space-2xs) 0;
}

.flow-arrow::after {
  content: "";
  display: block;
  width: 2px;
  height: 20px;
  background: var(--border);
  position: relative;
}

/* ---- Inline Details ---- */
.inline-details {
  margin: var(--space-xs) 0;
}

.inline-details > summary {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  cursor: pointer;
  list-style: none;
  color: var(--link);
  font-weight: 500;
  min-height: var(--min-touch-target);
}

.inline-details > summary::-webkit-details-marker {
  display: none;
}

.inline-details-content {
  padding: var(--space-xs) 0 var(--space-xs) var(--space-sm);
  border-left: 3px solid var(--border);
  margin-left: var(--space-2xs);
}

/* ---- Alert / Warning Cards ---- */
.alert-card {
  background: var(--section-red-glass);
  border: 1px solid var(--section-red);
  border-radius: var(--border-radius-sm);
  padding: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.alert-card h4 {
  color: #8B0000;
  margin-bottom: var(--space-xs);
}

[data-theme="dark"] .alert-card h4 {
  color: #FF8888;
}

/* ---- Aldrete Score Widget ---- */
.aldrete-widget {
  padding: var(--space-xs) 0;
}

.aldrete-category {
  margin-bottom: var(--space-sm);
}

.aldrete-category-name {
  font-weight: 600;
  font-size: var(--font-size-base);
  margin-bottom: var(--space-xs);
}

.aldrete-option {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  margin-bottom: 4px;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-surface);
  cursor: pointer;
  min-height: var(--min-touch-target);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.aldrete-option:hover {
  border-color: var(--text-muted);
}

.aldrete-option.selected {
  background: var(--section-green-glass);
  border-color: var(--section-green);
}

.aldrete-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.aldrete-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--border);
  font-weight: 700;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.aldrete-option.selected .aldrete-badge {
  background: var(--brand-secondary, #4A7A28);
  color: #fff;
}

.aldrete-option-text {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.aldrete-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm);
  margin-top: var(--space-sm);
  border-top: 2px solid var(--border);
}

.aldrete-total-label {
  font-weight: 600;
  font-size: var(--font-size-lg);
}

.aldrete-total-score {
  font-weight: 700;
  font-size: var(--font-size-xl);
}

.aldrete-result {
  text-align: center;
  font-weight: 600;
  font-size: var(--font-size-base);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--border-radius-sm);
  min-height: 0;
  transition: all var(--transition-fast);
}

.aldrete-result:empty {
  display: none;
}

.aldrete-pass {
  background: var(--section-green-glass);
  color: #1a6b2a;
}

.aldrete-fail {
  background: var(--section-red-glass);
  color: #8B0000;
}

[data-theme="dark"] .aldrete-pass {
  color: #6fd680;
}

[data-theme="dark"] .aldrete-fail {
  color: #FF8888;
}

.aldrete-reset {
  display: block;
  margin: var(--space-sm) auto 0;
  padding: var(--space-xs) var(--space-md);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-sm);
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  min-height: var(--min-touch-target);
  transition: background var(--transition-fast);
}

.aldrete-reset:hover {
  background: var(--border);
}

/* ---- Footer ---- */
.site-footer {
  text-align: center;
  padding: var(--space-lg) var(--space-sm);
  border-top: 1px solid var(--border);
  margin-top: var(--space-lg);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.site-footer p {
  margin-bottom: var(--space-2xs);
}

/* ---- Image Modal Trigger Button ---- */

.image-modal-trigger-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: var(--space-sm);
  margin-bottom: var(--space-sm);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-sm);
  background: var(--bg-surface);
  color: var(--link);
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
}

* + .image-modal-trigger-btn {
  margin-top: var(--space-sm);
}

.image-modal-trigger-btn:hover {
  background: var(--border);
  box-shadow: var(--shadow-sm);
}

.image-modal-trigger-btn:focus-visible {
  outline: 3px solid var(--brand-primary);
  outline-offset: 2px;
}

/* ---- Image Modal ---- */

.image-modal {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  margin: 0;
  padding: 0;
  border: none;
  background: rgba(0, 0, 0, 0.92);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
}

.image-modal[open] {
  display: flex;
}

.image-modal::backdrop {
  background: transparent;
}

.image-modal-close {
  position: absolute;
  top: var(--space-xs);
  right: var(--space-xs);
  z-index: 10;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  pointer-events: auto;
  touch-action: auto;
}

.image-modal-close:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 2px;
}

.image-modal-viewport {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.image-modal-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transform-origin: center center;
  will-change: transform;
  pointer-events: none;
}

@media (orientation: landscape) and (max-height: 500px) {
  .image-modal-close {
    top: var(--space-2xs);
    right: var(--space-2xs);
    width: 36px;
    height: 36px;
    font-size: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .image-modal-img {
    transition: none !important;
  }
}